text: import unittest
  from paycheck import with_checker
  
  class TestStrings(unittest.TestCase):
      """
      More-or-less a direct port of the string testing example from the ScalaCheck
      doc at: http://code.google.com/p/scalacheck/
      """
      
      @with_checker(str, str)
      def test_starts_with(self, a, b):
          self.assertTrue((a+b).startswith(a))
  
      @with_checker(str, str)
      def test_ends_with(self, a, b):
          self.assertTrue((a+b).endswith(b))
  
      @with_checker(str, str)
      def test_concat(self, a, b):
          self.assertTrue(len(a+b) >= len(a))
          self.assertTrue(len(a+b) >= len(b))
  
      @with_checker(str, str)
      def test_substring2(self, a, b):
          self.assertEqual( (a+b)[len(a):], b )
      
      @with_checker(str, str, str)
      def test_substring3(self, a, b, c):
          self.assertEqual((a+b+c)[len(a):len(a)+len(b)], b)
  
  tests = [TestStrings]
  
  if __name__ == '__main__':
      unittest.main()
  